Grimsby, IL Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grimsby, IL in one place.
Partly sunny. High near 56, with temperatures falling to around 50 in the afternoon. North northeast wind around 1 mph.
Local Weather Overview
This forecast page for Grimsby, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Nov 7, 2026 5:49 PM CST.
The active forecast window currently covers Nov 7 to Nov 13, 2026 for Grimsby, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 7 to Nov 13, 2026
- Latest sync
- Nov 7, 2026 5:49 PM CST
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Grimsby
Tuesday looks like the warmest upcoming period in Grimsby at 72 degrees F.
Tonight is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Thursday at about 8 to 15 mph N.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 7, 2026 5:49 PM CST
- Coverage
- 8 days
- Time zone
- America/Chicago
- Forecast office
- PAH
- Radar station
- KPAH
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Areas of frost after midnight. Mostly clear. Low around 31, with temperatures rising to around 33 overnight. Wind around 0 mph.
Widespread frost before 9am. Sunny. High near 67, with temperatures falling to around 62 in the afternoon. Southwest wind 0 to 6 mph.
Patchy fog after 9pm. Mostly clear, with a low around 36. West northwest wind around 2 mph.
Patchy fog before 7am, then patchy frost and patchy fog between 7am and 10am. Sunny, with a high near 69. Southwest wind 0 to 3 mph.
Clear, with a low around 40. South southwest wind around 3 mph.
Sunny, with a high near 72. Southwest wind 1 to 5 mph.
Mostly clear, with a low around 43. West southwest wind 0 to 3 mph.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. West southwest wind 0 to 7 mph.
A slight chance of rain showers before midnight. Mostly cloudy, with a low around 41. Northwest wind 3 to 7 mph.
A slight chance of rain showers before noon. Mostly sunny, with a high near 57. North wind 8 to 15 mph, with gusts as high as 22 mph.
Partly cloudy, with a low around 32. North northwest wind 5 to 10 mph.
Mostly sunny, with a high near 54. North northwest wind 5 to 10 mph.
Mostly clear, with a low around 31. Northwest wind 0 to 3 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Nov 7
|
Partly Sunny
|
56°F |
1 mph
NNE
|
|
Tonight
Nov 7
|
Mostly Clear then Areas Of Frost
|
31°F |
0 mph
|
|
Sunday
Nov 8
|
Widespread Frost then Sunny
|
67°F |
0 to 6 mph
SW
|
|
Sunday Night
Nov 8
|
Patchy Fog
|
36°F |
2 mph
WNW
|
|
Monday
Nov 9
|
Patchy Fog then Sunny
|
69°F |
0 to 3 mph
SW
|
|
Monday Night
Nov 9
|
Clear
|
40°F |
3 mph
SSW
|
|
Tuesday
Nov 10
|
Sunny
|
72°F |
1 to 5 mph
SW
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
43°F |
0 to 3 mph
WSW
|
|
Veterans Day
Nov 11
|
Mostly Sunny then Chance Showers And Thunderstorms
|
69°F |
0 to 7 mph
WSW
|
|
Wednesday Night
Nov 11
|
Slight Chance Rain Showers then Mostly Cloudy
|
41°F |
3 to 7 mph
NW
|
|
Thursday
Nov 12
|
Slight Chance Rain Showers then Mostly Sunny
|
57°F |
8 to 15 mph
N
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
32°F |
5 to 10 mph
NNW
|
|
Friday
Nov 13
|
Mostly Sunny
|
54°F |
5 to 10 mph
NNW
|
|
Friday Night
Nov 13
|
Mostly Clear
|
31°F |
0 to 3 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grimsby.